CH638457A5 - Clutch device for schleppkreisfoerderer. - Google Patents

Description

638 457

2nd

PATENT CLAIM Coupling device for drag circuit conveyor with a monorail arranged under the drag chain for carriages rolling on it, equipped with two carriages, the movable coupling parts on the carriers of the drag chain and the coupling parts of the carriages interacting with these being fixedly arranged on the carriages, furthermore those on the Drivers of the drag chain arranged coupling parts consist in particular of a housing in which a driver finger and a control lever in operative connection with it are pivotally mounted about horizontal axes, in such a way that the control lever normally holds the driver finger in its engaged position and in its own, in cooperation with a local or one on the rear drive in the feed direction of each carriage raised position raised pivoting of the driving finger brings up, the roller carrier of the carriage as the La ufwagen associated coupling parts or overrun parts are formed and for this purpose carry curve pieces that the adjusting lever also serves as a locking lever, which locks the driving finger above its axis of rotation in a vertical position and, when the locking lever is in the raised position, for pivoting upward against the feed direction releases, characterized in that the driver finger (12) has a recessed indentation (34) on its front side (33) for receiving the nose (13) of the locking lever (11) in its raised position and the rear side (35) of the driver finger (12 ) is flattened in such a way that it lies horizontally in the raised position of the driving finger (12) pivoted in the conveying direction, the locking lever (11) also creating a corresponding flattening (39) on its underside (38) to create space for the pivoted driving finger (12) ) having.

The invention relates to a coupling device for drag circuit conveyors. It is based on such a coupling device in a drag circuit conveyor with a monorail arranged under the drag chain for carriages rolling on it, equipped with two carriages, the movable coupling parts on the carriers of the drag chain and the coupling parts of the carriages interacting therewith being arranged firmly on the carriages . Furthermore, in the known embodiment, the coupling parts arranged on the carriers of the drag chain consist in particular of a housing in which a carrier finger and an actuating lever which is operatively connected to it are pivotably mounted about horizontal axes, in such a way that the actuating lever normally holds the carrier finger in its engaged position holds and in its own raised position in cooperation with a local or a mounted on the rear drive in the direction of each carriage part causes or allows the driving finger to pivot upwards. The roller carriers of the carriages are at the same time designed as the coupling parts or overrun parts assigned to the carriages. For this purpose, they carry curve pieces which can be designed as roller caps. Furthermore, the actuating lever, which also serves as a locking lever, has a nose which locks the driving finger above its axis of rotation, engaging it in a vertical position and, when the locking lever is in the raised position, releases it for pivoting upward against the feed direction.

With such a design of the coupling device, it should in particular be achieved that, in addition to making the carriage as simple as possible, the distance between load carrier or carriage and drag chain can be kept as small as possible. Furthermore, the force required to initiate the coupling process should also be very small and only act for a short time. The latter was achieved in particular in that the driver finger opens in the force-s direction and the frictional connection is released after the briefest actuation of the locking lever, so that the forces occurring during the uncoupling process between the carriage and driver are not effective during the entire decoupling process, as well as the distance of the carriage io to the drag chain is significantly reduced by avoiding high-level coupling parts on the carriage.

Now there is often a need in the trailing-circle conveyors in question to design the coupling means so that the carriage can overtake the driver on the chain, e.g. when, for some reason, a carriage is to be moved by hand faster in the feed direction than the speed of the drag chain.

The invention is accordingly based on the object to provide 20 such a possibility and solves this problem by a coupling device as described in the introduction, in which the driver finger has a recessed recess on its front for receiving the nose of the locking lever when the locking lever is raised and the back of the driver -25 merfingers is flattened in such a way that it lies horizontally in a raised position pivoted in the conveying direction, the locking lever also having a corresponding flattening on its underside to create space for the folded-up driving finger.

The invention is described in more detail in the following description with reference to an embodiment of the subject matter of the invention which is purely schematic and is shown, for example, in the accompanying drawing.

Carriers 2 are used to move carriages, not shown, whose roller caps 20 and 21 are shown in dash-dot and dashed lines, in the direction of arrow 5, on suspension rails 35, which are not shown. The chain chain 3 indicated by dash-dotted lines runs continuously in a guide profile, not shown, in which it is guided by means of rollers 7. 4o The driver 2 of the drag chain 3 are equipped with a housing 10, between the vertical side walls of a lever 11 serving as a locking lever and a driver finger 12 are pivoted about horizontal axes 31 and 32, mounted. The locking lever 11 is equipped with a nose 13, which locks the driving finger 12 in the lowered state of the locking lever 11 in its illustrated vertical downward position and releases the driving finger when the locking lever 11 is pivoted upwards, so that it moves upward against the direction of advance can swing away, so below the driver 2 are dash-dotted and dashed lines indicate the silhouettes 20 and 21 of the roller caps for the rollers of the carriage.

While in the known embodiment, when the locking lever 11 is raised, the driving finger 12 can pivot backwards 55 and thus slide over the roller caps 20 and 21, conversely, when the driving finger 12 was raised by a subsequent roller cap to the front, it was not possible to pull the driving finger as far upwards to pivot that it could be driven under by the roller caps of the following car m. To enable this, however, is the concern of the present invention.

For this purpose, the driver finger is first provided on its front side 33 in the feed direction 5 with a recess 34, into which the nose 13 of the locking lever 11 comes to rest at 65 when the locking lever is raised and the driver finger 12 is raised towards the front. Furthermore, the rear side 35 of the driving finger 12 is flattened in the region 36, so that this rear side is a balance in the forwardly raised position

3rd

638 457

occupies the right, which lies above the upper horizontal end 37 of the roller caps 20 and 21. Furthermore, the underside 38 of the locking lever 11 is flattened in the region 39, which in turn contributes to the fact that the driving finger 12 pivoted upwards can get into a position in which it or its parts no longer protrude into the feed profile of the roller caps 20 and 21 .

However, this means that both the locking lever 11 and in particular the driving finger 12 can assume a position in which they lie completely above the roller caps 20 and 21, so that if the need arises, the carriage can be any faster than the drag chain below it can be moved in the feed direction.

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1 sheet of drawings